Temagamite
| Temagamite | |
|---|---|
| General | |
| Category | Telluride mineral | 
| Formula | Pd3HgTe3 | 
| IMA symbol | Tem | 
| Strunz classification | 2.BC.50 | 
| Crystal system | Orthorhombic  Unknown space group  | 
| Identification | |
| Color | Bright white to grey | 
| Crystal habit | microscopic included grains | 
| Mohs scale hardness | 2.5 | 
| Luster | Metallic | 
| Diaphaneity | Opaque | 
| Specific gravity | 9.5 | 
| Pleochroism | Weak | 
| References | |
Temagamite is a bright white palladium mercury telluride mineral with a hardness of 2+1⁄2 on the Mohs scale. Its chemical formula is Pd3HgTe3. It was discovered at the Temagami Mine on Temagami Island, Lake Temagami in 1973, and it represents a rare mineral in the Temagami Greenstone Belt.
It occurs as microscopic inclusions within massive chalcopyrite at Temagami in association with other rare tellurides: merenskyite, stützite, hessite and an unnamed Pd-Hg-Ag telluride. In addition to the discovery locality, it has been reported from the Stillwater igneous complex in Montana and the New Rambler copper–nickel mine in the Medicine Bow Mountains of Wyoming.